int b = 1;
int numDataPoints = 50000;
int dataIndex = 1;
String[] dataStrings = new String[numDataPoints]; // Save up to 10k values

// loads a library needed to establish a connection to a serial device
// in our case, the serial device is a Circuit Playground
import processing.serial.*;

// create a new array that will hold on to the sensor values
// from the Circuit Playground
float[] portValues = new float[8];

// create a new serial connection
Serial myPort;
String inString;

void setup (){
  size (300,300);
  background(255,255,255);
   myPort = new Serial(this, "/dev/cu.usbmodem1421", 9600);
 for(int i = 0; i<8; i++)
  {
    portValues[i] = 0;
  }
  dataStrings[0] = "x,y,z,leftButton,rightButton,lightSensor,soundSensor,tempSensor";
}

// convert float data to string data in order to save to a file
String buildDataString(float[] v) {
  String result = "";
  for(int i = 0; i<v.length-1; i++) {
   result += str(v[i]) + ",";
  }
  result += str(v[7]);
  return result;
}



void draw()
{
// changes background color
    if(portValues[4] == 1) {  // if the left button is pressed...
  background (random(255),random(255),random(255));
    } else {
      background(255,255,255);// if no buttons are pressed
    }
 // Mondrian Code
line(0,100,167,100);
line(57,0,57,100);
line(167,0,167,190);
line(0,190,250,190);
line(130,190,130,250);
line(250,143,300,143);
line(72,250,72,300);
line(250,250,250,300);
line(142,175,175,175);
line(67,175,67,190);
line(67,153,0,153);
line(285,0,285,143);
line(142,0,142,250);
line(230,230,0,230);
line(180,250,180,190);
line(130,200,130,175);
line(250,190,300,190);
line(67,33,142,33);
line(117,58,117,175);
line(117,58,67,58);
line(117,33,117,0);
line(142,33,167,33);
line(142,58,167,58);
line(285,10,250,10);
line(285,75,250,75);
line(230,230,230,165);

fill(255,0,0);
rect(0,0,67,100);


fill(0,0,255);
rect(67,100,75,75);

fill(0,0,255);
rect(0,190,130,60);

fill(0,255,0);
rect(167,0,83,190);

fill(255,0,0);
rect(230,230,70,70);

fill(0,255,0);
rect(130,250,50,50);

fill(255,255,0);
rect(142,33,-25,25);

fill(255,255,0);
rect(300,10,-15,65);

// Recognizing and stores data from arduino.
 if (inString != null) {
    portValues = processSensorValues(inString); // get data
    // manage data points
    dataIndex++;
    if(dataIndex > numDataPoints - 1) {
     dataIndex = 1;
    }
    dataStrings[dataIndex] = buildDataString(portValues);
    saveStrings("values.csv",dataStrings);
    text(dataIndex,width-80,40);
  }



 // Change the color of recangles based on the button pressed.
  if(portValues[3] == 1) {  // if the right button is pressed...

  fill (0,0,255);  //rearange color patter
fill(random(255),random(255),random(255));
rect(0,0,67,100);

fill(random(255),random(255),random(255));
rect(67,100,75,75);

fill(random(255),random(255),random(255));
rect(0,190,130,60);

fill(random(255),random(255),random(255));
rect(167,0,83,190);

fill(random(255),random(255),random(255));
rect(230,230,70,70);

fill(random(255),random(255),random(255));
rect(130,250,50,50);

fill(random(255),random(255),random(255));
rect(142,33,-25,25);

fill(random(255),random(255),random(255));
rect(300,10,-15,65);
  }
}

float[] processSensorValues(String valString) {

  String[] temp = {"0", "0", "0", "0", "0", "0", "0", "0"};

  temp = split(valString,"\t");

  if(temp == null) {
    for(int i = 0; i<8; i++) {
      temp[i] = "0";
    }
  }

  float[] vals = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0};
  for(int i = 0; i<8; i++)
  {
    if(temp != null)
    {
      vals[i] = float(temp[i]);
    }

    else
    {
      vals[i] = 0;
    }

  }
  return vals;
}

// read new data from the Circuit Playground
void serialEvent(Serial p) {
  inString = myPort.readStringUntil(10);
}